| 中国金矿床成矿构造背景探讨 |
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| 引用本文： | 罗镇宽,关康,沈明星.中国金矿床成矿构造背景探讨[J].矿床地质,1991,10(4):325-332. |
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| 作者姓名： | 罗镇宽 关康 沈明星 |
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| 作者单位： | 冶金工业部天津地质研究院，冶金工业部天津地质研究院，冶金工业部天津地质研究院 |
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| 摘 要： | 本文试图采用板块构造观点来探讨金矿床成矿构造背景。板块的消减带及消减带一侧的大陆边缘活动带和岛弧活动带是有利于金矿化的位置。显生宙以来,中国地块周边发生了3次大规模的板块运动,并伴随有3次大的金矿化。据此将中国划分为海西、特提斯—喜马拉雅、燕山3大构造成矿域。由于受板块构造的控制,导致中国金矿时、空分布规律和成因上的一些重要特征。时间上,前寒武纪金矿不是特别重要,显生宙的金矿占了主导地位;空间上,金矿床常分布在古消减带及其附近的古大陆边缘活动带;成因上,许多矿床具有多期矿化复成因的特征。
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| 关 键 词： | 金矿 矿床 成矿 构造 中国 板块 |
An Approach To The Metallotectonic Setting Of Gold Deposits In China |
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| Abstract: | This paper tries to discuss the metallotectonic setting of gold deposits in China in the light of plate tectonics. As deformation, magmatic activity and metamorphism were extremely strong in the subduction zone, they provided not only plenty of material sources for gold mineralization but also heat energy, hot flllids and structural space for mobilization, migration and enrichment of gold. Most of gold deposits formed in Phanerozoic are located in subduction zones, active continental margins and island arcs, especially for gold deposits in Meso-Cenozoic Circum-Pacific metallogenic belt. According to the viewpoint of plate tectonics, Chinese landmass is a complex terranes-mosaicked mass centered on Tarim-Sino-Korean block with the terranes sutured by orogenic belts of different ages. During Phanerozoic, three great plate movements took place along the margin of Chinese landmass, accompanied by the saint times of large-scale gold mineralization. The collision between Tarim-Sino-Korean massif and Siberian massif resulted in Hercynian movement, that between Indian plate, and Chinese landmass led to Tethys-Himalayan movement, and the subduction of Pacific plate beneath Asian continent gave rise to Yanshanian movement. The gold mineralization in China was dominantly controlled by these plate movements. Therefore, the gold deposits in China could be assigned to three metallogenic domains: the Hercynian metallogenic domain includes the northern margin of Tarim-Sino-Korean massif and the area north of it, the Tethys-ttimalayan metallogemc domain comprises Southwest China and part of Northwest China, and the Yanshanian metallogenic domain covers the region east of Dahinganling-Taihangshan-western Henan-western Hubei-Xuefengshan of western Hunan. |
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